Siemens 1LA8 High Low Voltage AC Motor

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part namebrandmodelVoltageprotectioncooling
motorSiemens1LA81PQ8400V,690V,2.3KV,4.16KV,6KVIP55IC411 (1LA8,1LA4)
IC416 (1PQ8,1PQ4)

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Q:how do a ac motor works?
Most AC motors are induction motors. They contain some stationary coils of wire called the stator. The stator is connected to an AC power source and AC current flows through the stator coils. The current in the stator creates a magnetic field that rotates at a speed that is determined by the frequency of the alternating current. The rotating part of the motor, the rotor, contains electrical conductors, usually aluminum bars that are connected together. The rotating magnetic field of the stator passes through these conductors and causes an alternating current to flow in the rotor. The rotor current creates another magnetic field. That magnetic field is attracted to the rotating stator magnetic field. The force of that magnetic attraction, moves the rotor and causes it to rotate at a speed that is only sightly slower than the speed of the stator field.
Q:I have an electric grandfather clock that the motor broke.. I am having trouble finding a motor..?
You should be able to find a replacement AC motor (110V, 60 Hz for use in the US) at an electrical supply store, a clock shop, a hobby supply shop, or on-line. You could even go to a major retailer like Walmart and just get a regular (cheap) AC-operated mantle clock or something similar, and then use the guts of that to replace the defective one in your grandfather clock. Make sure the old grandfather clock hands fit on the new movement, or just replace the hands when you replace the movement. As far as using a DC (battery operated) movement goes, certainly you can do that. Again, go to a hobby supply store or a major retailer and buy a battery-operated clock. Remove the DC motorized movement and put it in your grandfather clock. The required battery size is specified by the movement itself. Typically a medium to large DC clock movement requires one AA or C battery, although some movements may require 2 each AA batteries or even a special battery, such as a Type N. Either way (replacing the AC motor with another similar type AC motor, or replacing the whole AC movement with a DC one), you should be fine.
Q:electric car coversion not hybred any experince ?
Q:Can the speed of a 110volt motor , be changed without the use of a gear box?
There is two ways of changing the speed of an AC motor. The first is a gear box, which you stated you don't want to deal with. The other, and also expensive, is a frequency drive. This actually changes the incoming AC into DC then back to a AC that can be changed in frequency. This set up is used a lot in commercial AC applications.
Q:Can you create voltage with a motor?
an AC single phase motor is not built to be a generator, and will not produce much in the way of a voltage when spun. The reason is the way the motor is designed to operate on AC without a separately powered field coil. the most common washing machine motors have a way to start with a Capacitor which provides some phase shift while starting to provide a moving magnetic field and this is switched out when running.
Q:If my old AC motor rpm was 850, what damage will a 1050 rpm motor cause?
Do not replace the motor with anything else other than a motor with very similar specs. If the old motor was an 850, put an 850 on there. The big issue here is amp draw. An 1150 RPM motor may very well pull more amperage than the system is designed to handle, which can damage other electrical components in the system. Also, they don't just slap any RPM motor on these systems and expect them to work. The RPM is selected in the design process with a specific amount of air being moved to attain the correct amount of heat transfer in the coil. If you change the amount of air being moved, you change the dynamics of the system which can change the efficiency of the system (and probably not in a good way). This can even eventually lead to failure of other components in the system. If a system doesn't cool as well, it runs longer, if it runs longer, all the electrical components and motors run hotter. Running hotter equals a shorter life span. Your motor that you need to replace has an RPM rating, a horsepower rating, an amp draw rating and a direction of rotation (many are reversible). The RPM and HP and rotation of the new motor have to match exactly to the old one. The amp draw needs to be as close as you can get it. OEM replacements will be exact but if you buy a universal replacement, the amp draw may be a bit off. Just don't go more than a few tenths of an amp off. Another thing is to make sure that you have the right sized run capacitor for the new motor. Its cap rating may very well be different than the old motor. I would recommend replacing the old cap either way, even if it is the same rating. Caps wear out over time and this can lead to motor failure.
Q:Just got a replacement blower motor for my furnace/AC. It is a 3 speed but Id like it to be 1 speed. How?
The white wire is neutral, always. The rest are speeds. The black is normally high speed. Red is normally medium, and blue is low. . A quick check on the side of the motor will verify this, but if you are using this for air conditioning, high speed is what you want.
Q:does a 1/2 hp dc motor produce the same torque as a 1/2 hp ac motor?
If the 1/2 hp is a measure of shaft hp, fair chance both will be pretty much identical. If you change to DC, you must have a source of DC. I'm just wondering where you would get that DC from!
Q:Can Variable frequency drives INCREASE rpm of an AC motor without using up too much current?
The problem with starting any motor is the high starting current. For small motors up to say 4Kw this is not considered a problem and they are often wired to a DOL direct on line starter. That is the full Voltage and Frequency is applied to the motor all the way through. Basically it is on/off. With a VFD it is possible to limit the starting current by electronically varying the Supply parameters particuarly the frequency. This can be simply explained by comparing the motor to a light bulb. A normal light switch turns the light on/off with nothing in between eg DOL starter A dimmer switch allows you to vary the amount of power to the light bulb. Therefore the VFD is similar to the dimmer switch slowly increasing the speed of the motor. As mentioned by others to use a VFD just to start a motor is an expensive method with Soft start electronic conmtrollers more economical. However if the motor requires variable speed operation as part of a process control system then the VFD is justified
Q:How to control the speed of a Electric AC motor?
You need an electronic motor speed control. It varies the voltage and the frequency to change the speed. The ratio of voltage to frequency is maintained constant. Do a web search.

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